MY SONS CHEVY IMPALA WAS IN OUR DRIVEWAY UNTOUCHED FOR TWO DAYS. WHEN HE GOT IN IT AND TURNED THE KEY TO START THE VEHICLE THE INTAKE MANIFOLD EXPLODED AND CAUSED AN ENGINE FIRE. WHILE ONLINE I FOUND THIS HAS BEEN A PROBLEM FOR YEARS!!! WHY HASN'T THIS BEEN ADDRESSED? HE COULD HAVE DIED. AND IF I WASN'T IN THE YARD TO REACT AND PUT THE FIRE OUT MY HOUSE COULD HAVE GONE UP WITH IT.